The Blue tang surgeonfish (Acanthurus coeruleus) is a saltwater fish of the family Acanthuridae that grows up to 39 cm.
Description
The blue tang is an oval, laterally compressed surgeonfish of the family Acanthuridae reaching about 39 cm. Adults are deep blue with fine, wavy lengthwise lines, while juveniles are bright yellow and change colour gradually. Characteristic of the family is the sharp, scalpel-like bony blade on each side of the tail base - hence the name surgeonfish - which can be flicked out in defence and cause deep cuts. The species lives on coral and rock reefs of shallow water in the western Atlantic and the Caribbean. It grazes algae off the rocks with its small mouth, often in loose groups, and so helps keep the reef free of smothering algae.
Frequently asked questions
How do you recognise the Blue tang surgeonfish?
The Blue tang surgeonfish has a flattened, disc-shaped body, is mainly blue and shows a horizontal stripes pattern.
Where does the Blue tang surgeonfish live?
The Blue tang surgeonfish lives in the sea (marine waters) and is mostly found around stony or rocky ground.
How big does the Blue tang surgeonfish get?
The Blue tang surgeonfish grows to a maximum of about 39 cm. On average the species is around 25 cm.
Is the Blue tang surgeonfish dangerous to humans?
The Blue tang surgeonfish can cause injury; handle it with care.
Is the Blue tang surgeonfish edible?
The Blue tang surgeonfish is rarely eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Acanthurus
More from the family Acanthuridae
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